a particularly nasty smelling fart that lingers in the room for several minutes after being emitted from the anus; flatulence
Evonna has some major swamp gas today! She farted over five minutes ago and I can still smell it!
by Krazy K December 21, 2002
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FBI code word for ghosts and/or UFOs
nothing to worry about here, just some swamp gas caused a flare in the atmosphere...
by somethingplex1 December 26, 2011
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Methane like odor that lingers in the air after a coworker rips a nasty fart.
Claude filled the office with swamp gas today. It was horrible.
by DamnCorkins April 17, 2015
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The stinky, uncomfortable farts and shits sometimes suffered after a long night of drinking lots of beer.
Man, I had so much nasty ice last night. I have a stanky case of the swamp gas!
by Leoton September 11, 2010
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Thick, pungent, lingering gas that is the result of eating blackened seasoned foods. Blackening is one of the most flavorful ways to prepare food that will leave you with spicy elemented swamp gas. The hallmarks of Cajun Swamp Gas are its spice filled after notes and their power to linger in the air for extended periods. Makes for the best, but the worst, dutch ovens.
Carl couldn't resist eating a giant blackened shrimp po' boy for dinner. The blackened seasoning fired up Carl's bowels and he was dropping Cajun Swamp Gas all night. It was so ripe that he gave his girlfriend a dutch oven to share the rancid stench.
by Eaton Holgoode March 21, 2015
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